I will just give an example:
In my personal systems I usually have a partition named "Multimedia" where I store audio, video and pictures. I want some users to have write access to it, so what do I do ?
I created a group named "multimedia" so everyone in this group should be able to write to that directory/partition.
1. I update my fstab (giving acl to reiserfs,xfs, etc.)
2. Remount the partitions with #mount -a -o remount
3. Set the permissions: #setfacl -m g:multimedia:rwx /multimedia
and then I use graphical tool to add users to that group.
It would be nice to make the process (3) using the properties dialog of the folder /multimedia or something similar through nautilus.
EDIT-----------
eiciel is not a solution because it will not let you make a mounted partition acl-enabled without having to manually edit your fstab and remount.
Besides it, eiciel does not integrate transparently in the properties context menu(ie, form Nautilus), which would make it more user friendly.
If you already have ACL's set up , eiciel is a good option.
